Greenhouse EffectCarbon FootprintGasesGlobal WarmingMethaneEnergy-Generating ResourcesAtmosphereFossil FuelsCrops, AgriculturalAgricultureNitrous OxideCarbon DioxideClimateClimate ChangeDenitrificationForestryConservation of Natural ResourcesSoilFertilizersEnvironmental PolicyBiofuelsCarbon SequestrationEcosystemCarbonEarth (Planet)Conservation of Energy ResourcesEnvironmental MonitoringTreesWaste ManagementRenewable EnergyBiomassEnvironment, ControlledModels, TheoreticalEnvironmental PollutionNitrificationGasolineAir PollutantsEnvironmental RemediationLivestockNitrogen CycleAir PollutionOceans and SeasGardeningGarbageIce CoverRefuse DisposalTropical ClimateWetlandsCarbon CycleFiresHuman ActivitiesSoil MicrobiologyEnvironmentTemperatureSeasonsNitrogenFood SupplyVehicle EmissionsEcological Systems, ClosedSeawaterOzoneChromatography, GasForecastingNitrogen OxidesGas Chromatography-Mass SpectrometryAnimal HusbandryGeographyOryza sativaEcologyPesticidesPulmonary Gas ExchangeChinaNoble GasesPest Control, BiologicalInternational CooperationAmmoniaSolanum melongenaBacteriaLavandulaPlant DiseasesGeologic SedimentsArchaeaMicroclimateTime FactorsHemipteraCucumis sativusComputer SimulationGas PoisoningBlood Gas AnalysisPlant LeavesRosmarinusOxidoreductasesAgricultural Workers' DiseasesGeological PhenomenaPlant RootsWindSolar EnergyDeveloping CountriesModels, BiologicalPhylogeny